Simpson, Keith, 1907-1985. Police : the investigation of violence / Keith Simpson ; with a section on photography by Patricia M. Turnbull. - Estover [Eng.] : Macdonald and Evans, 1978. - xvi, 224 p. : ill. ; 23 cm. - Police studies . Includes index. ISBN: 0712116893 LCCN: 79307073 Subjects--Topical Terms: Homicide investigation.Criminal investigation. LC Class. No.: HV8079.H6 / S55 Dewey Class. No.: 364.12